The course of medical sensor has the characteristics of knowledge discreteness and concept abstraction. Peer Instruction is a group discussion teaching based on questions. The research group reforms medical sensor course using peer instruction. In the course of teaching, Teachers implement peer instruction with some concept questions. The application of peer instruction in Medical Sensor Course can enhance to master the concept of sensor during ; self-learning and collaboration .The peer instruction can better cultivate students' innovative spirit, team spirit and critical thinking ability.
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